493 results found
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Proteasome storage granules protect proteasomes from autophagic degradation upon carbon starvation

    Richard S Marshall, Richard D Vierstra
    Proteasomes are protected from autophagic elimination upon carbon starvation by sequestration into cytoplasmic storage granules, which aid cell fitness by providing a cache of proteasomes that can be rapidly remobilized when carbon availability improves.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The stress-responsive kinases MAPKAPK2/MAPKAPK3 activate starvation-induced autophagy through Beclin 1 phosphorylation

    Yongjie Wei et al.
    Nutrient starvation activates autophagy by a novel signaling mechanism that is blocked by one of the major autophagy inhibitors.
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    Evolution of reduced co-activator dependence led to target expansion of a starvation response pathway

    Bin Z He et al.
    The phosphate starvation response network in a commensal yeast evolved to expand its downstream targets via changes in the main transcription factor's dependence on its co-activator, potentially altering the physiological response.
    1. Cell Biology

    A stress assembly that confers cell viability by preserving ERES components during amino-acid starvation

    Margarita Zacharogianni et al.
    Amino-acid starvation leads to the formation of a reversible stress assembly, the Sec body, which is a pro-survival reservoir for components of the ER exit sites.
    1. Biochemistry and Chemical Biology

    daf-16/FoxO promotes gluconeogenesis and trehalose synthesis during starvation to support survival

    Jonathan D Hibshman et al.
    daf-16/FoxO restructures metabolism during acute starvation to promote synthesis of trehalose, which supports survival as a stress protectant and energy source.
    1. Cell Biology

    AMPK and vacuole-associated Atg14p orchestrate μ-lipophagy for energy production and long-term survival under glucose starvation

    Arnold Y Seo et al.
    Upon AMPK activation by acute glucose restriction, Atg14p shifts its distribution from ER exit sites to liquid-ordered membrane domains on the vacuolar surface where, together with Atg6p, it facilitates LD-specific autophagy (i.e., microautophagy of lipid droplets) for energy production and long-term survival of starved cells.
    1. Cell Biology

    In vivo vizualisation of mono-ADP-ribosylation by dPARP16 upon amino-acid starvation

    Angelica Aguilera-Gomez et al.
    Amino-acid induced Sec body formation is mediated by PARP16 dependent MARylation of Sec16, a component of the endoplasmic reticulum exit site.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    A glucose-starvation response regulates the diffusion of macromolecules

    Ryan P Joyner et al.
    During stress conditions, eukaryotic cells dramatically alter their biophysical properties to regulate diffusion of macromolecules.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The coordinated action of the MVB pathway and autophagy ensures cell survival during starvation

    Martin Müller et al.
    A catabolic cascade is essential to enter a stable G1/G0 quiescent state and survive extended periods of starvation.
    1. Neuroscience

    AMPK acts as a molecular trigger to coordinate glutamatergic signals and adaptive behaviours during acute starvation

    Moloud Ahmadi, Richard Roy
    AMP-activated protein kinase directly coordinates glutamatergic signalling during starvation in C. elegans.

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